Ganghua Lin
National Astronomical Observatories, Chinese Academy of Sciences, China

Astronomy has been into age of the Virtual Astronomical Observatory (VAO). In it, data is distributed in different geography location of world. It can provide data query of multiple band. VAO employs XML to define metadata data and data in order to implement distribute computation. In this paper, author analyzes existed data model, present description to our special data with XML in a well-defined and meaningful way. The work has base to provide query to our data in VAO and may be useful to add additional search elements and categories to VAO.

Keywords: VAO, XML, metadata, interoperability